3138731804 has 24 divisors (see below), whose sum is σ = 5927698560. Its totient is φ = 1445609664.

The previous prime is 3138731801. The next prime is 3138731819. The reversal of 3138731804 is 4081378313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3138731801) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38099 + ... + 87914.

It is an arithmetic number, because the mean of its divisors is an integer number (246987440).

Almost surely, 2^3138731804 is an apocalyptic number.

It is an amenable number.

3138731804 is a deficient number, since it is larger than the sum of its proper divisors (2788966756).

3138731804 is a wasteful number, since it uses less digits than its factorization.

3138731804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126509 (or 126507 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 3138731804 is about 56024.3857976150. The cubic root of 3138731804 is about 1464.1471821678.

The spelling of 3138731804 in words is "three billion, one hundred thirty-eight million, seven hundred thirty-one thousand, eight hundred four".